FACTOID # 106: Americans are 15% more innovative than the Japanese. But in percentage terms, the Japanese grant 3.5 times more patents.
 
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Encyclopedia > Topological invariant

In the mathematical field of topology a topological property or topological invariant is a property of a topological space which is invariant under homeomorphisms.


Topological properties


  Results from FactBites:
 
PlanetMath: genus of topological surface (242 words)
The genus is a topological invariant of surfaces.
It is one of the oldest known topological invariants and, in fact, much of topology has been created in order to generalize this notion to more general situations than the topology of surfaces.
This is version 26 of genus of topological surface, born on 2002-08-15, modified 2006-09-11.
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